Don't know the issue. Belly button!

The right side of my belly button gets painful while passing stool and while empty stomach there is a lot of burping that too after eating also but from right side the burp is not fully relaxful it has like a sensation of discomfort and sometimes in right side only under rib cage there is a sudden pain also and now it has been two days that I have been suffering from constipated bowl movement that to loose motion and a pain very painful at the right side of the corner of belly buttion I was diagnosed one month before in my ultrasound with MILD RIGHT MESSENTERIC PARAORTIC LYMPHADENOPATHY but I have taken homapatheic medicine for it and it was fine but I went to marriage two days before and the food was not that good from then only my stomach is aching more on the right side of corner belly button